Hydrogen is an important part of any discussion on sustainability and reduction in emissions across major energy sectors. In addition to being a feedstock and process gas for many industrial processes, hydrogen is emerging as a fuel alternative for transportation applications. Renewable sources of hydrogen are therefore required to increase in capacity. Low-temperature electrolysis of water is currently the most mature method for carbon-free hydrogen generation and is reaching relevant scales to impact the energy landscape. However, costs still need to be reduced to be economical with traditional hydrogen sources. Operating cost reductions are enabled by the recent availability of low-cost sources of renewable energy, and the potential exists for a large reduction in capital cost with material and manufacturing optimization. This article focuses on the current status and development needs by component for the low-temperature electrolysis options.
BT - Annual Review of Chemical and Biomolecular Engineering DA - 07/2019 DO - 10.1146/annurev-chembioeng-060718-030241 IS - 1 LA - eng N2 -Hydrogen is an important part of any discussion on sustainability and reduction in emissions across major energy sectors. In addition to being a feedstock and process gas for many industrial processes, hydrogen is emerging as a fuel alternative for transportation applications. Renewable sources of hydrogen are therefore required to increase in capacity. Low-temperature electrolysis of water is currently the most mature method for carbon-free hydrogen generation and is reaching relevant scales to impact the energy landscape. However, costs still need to be reduced to be economical with traditional hydrogen sources. Operating cost reductions are enabled by the recent availability of low-cost sources of renewable energy, and the potential exists for a large reduction in capital cost with material and manufacturing optimization. This article focuses on the current status and development needs by component for the low-temperature electrolysis options.
PY - 2019 SP - 219 EP - 239 ST - Annu. Rev. Chem. Biomol. Eng. T2 - Annual Review of Chemical and Biomolecular Engineering TI - Perspectives on Low-Temperature Electrolysis and Potential for Renewable Hydrogen at Scale VL - 10 SN - 1947-5438 ER -